The following information is taken from the Dictionary of the Older Scots Tongue, available online at http://www.dsl.ac.uk/index.html. This is a work in progress.
| Spelling | Number | Dates & headers |
|---|---|---|
| Mar | 2 | 1489 (borch); 1545 (boyart) |
| of Mar | 1 | 1505 (borch) |